Even before Luca asked Ethan to stay in his house, he had started buying clothing for Sophia to stay at his house for a long time. Not wanting anyone in her room, messing with her personal items, he opted to simply buy things that would fit her. There was a vast variety of things she could choose from in case she wanted to try something else or wear what she normally did. He wanted her to feel taken care of while she was there.
The next thing they had to do was try to figure out her wallet situation considering her identification and debit and credit cards were missing along with her purse. She had already shut everything off and new ones were being sent. However, he didn't want her to worry about money while she was there.
To Sophia's surprise, when Luca caught up to her, he grasped her hand but didn't lead her right to his bedroom. They went around the corner to a different door. She recognized it as one of the guest rooms.